The Unicorns were a Canadian rock band formed in the year 2000 by Nicholas Thorburn (Nick Diamonds) of British Columbia and Alden Penner (Alden Ginger) of Quebec. J'aime Tambeur joined in December 200
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0268595c7db99b1a8621446d22adee043b13d2871567b9756a40c6524e710979. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d4479ef-9f6f-4a12-a1f4-e432b9eb2884.json and https://artists.proofprofile.net/proofs/artist/5d4479ef-9f6f-4a12-a1f4-e432b9eb2884.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Who Will Cut Our Hair When We're Gone? (Remastered)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10b31251f361c757a90bf94bf92942281a584c1961bcea17db29a771c1df251. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad28628944c0b5e921f7557fb603adca2ae3eefe75a815d87cec475fb7fd909. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d7748d5c0a50f9bb6b4706f6cd7e4f6aa606e5def807cc07188964248bfb0b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0142c5968a90d2b9a6ea4998e2ec62cf52158b3c69ff1c24c880984a03d3b035. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e673bfba112ac5692bc391ef663076ebf1cb8eb7c157bf383415b8d5639187e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9a41c11005f6cebf9bdee5a18c422cc20cb0e37f2532548a13592e27036a26. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d121f2741dea84621faf40e06fa21f834cbeeb7812128e82599894beb873744. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87998f84c23427e3bf55b7feb8f73c0a6de3dbb48f9a7510c1a3e54114e3663. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ef308a8413e603fbcd5269c1e85b92df1007c9d757480a3a2e7f7be7256144. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbc3933525652c967b4dfc56b61d02ace60cf8a24e431885cb1dbe850433f19. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6c828017000143e6f608105bb685bbc2f54f95c93b7c9ef4d210e413472b21. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673e7b4b821fe08e71ba6c771f53c8b366cea700a1c4fe9c95ff067e516b5f9f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea502f56118560d1aa96658e101c8d647c385c8eb55c60a62e740e55d8c5e22. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2B1401617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe368276ea72c73dc1393c6e50a1f81ff3e4f35a1163429c00918d348134d8306. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0403701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7faa468f601da5aefdea8561f40636f31c33179c464090d19216e882fabc2f4e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0403702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0682ad6b551d5722b35509f96ef37d49dea29f99574bff814cdafebf84657271. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0403703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157510988e8004d4678ec9dc0a8ae0468034381d29e25183cd0e891cf4c84af4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0403704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a2c5256707b61aff5445dc3e3cbd3d96c5052187d55093f7c8df13244da958. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd598b8434077580a5d1e270903287d0a9172c97e6a158d443c413c2f91daa87e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd60acd8575f2910e122d74d3561e25c6fd22522d915893f11941c9a174056c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8e034d469cedb622d6643ad84cff6c6a72d9491e54188913b1adae2f837d0f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678c9cbcd39696b1a1fab41319333f78baeb49625c518cbc6bbd49527c0bb1ce. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0405007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3da43ae150438849606c095b749de87a0f9302e2908ab5b51e469e4099272d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0405008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611565ae011803680c768f353073b0fa36a39b052030546db9fd8b5831c25e1e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceec820ef6370302505ebbbbafbac500961923a0ceb7793fcfb9ae12b4e5aade. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043bc8e99c7b9e6c504e2ec9c8c01c2a6ac0381bf834c4a26dde68db1d18f73d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aba0d1749312e9b66de3c4acdd406b57d32051cf2674045ef0ebdd226feee3c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd18a4a3f7f233d018815c8b4481eab51222d7f17d1106266eb3bf74fc3f3263. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US33X0605033.
OTR Benefit for the National Multiple Sclerosis Society
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d592606708d351ac4c8e98bd4cfa2493e4f834d35c3ba379811c2cd3f700562. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560621413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83acfc67268e8e879320f2807483009167f761033822a819a7ff011732c766b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560621412.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch